Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 34, Problem 1VCQ

Figure 34.11 Which of the following statements about the digestive system is false?

  1. Chyme is a mixture of food and digestive juices that is produced in the stomach.

  • Food enters the large intestine before the small intestine.
  • In the small intestine, chyme mixes with bile, which emulsifies fats.
  • The stomach is separated from the small intestine by the pylloric sphincter.
  • Chapter 34, Problem 1VCQ, Figure 34.11 Which of the following statements about the digestive system is false? Chyme is a , example  1Chapter 34, Problem 1VCQ, Figure 34.11 Which of the following statements about the digestive system is false? Chyme is a , example  2

    Expert Solution & Answer
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    Summary Introduction

    Introduction:

    Digestive system is involved in the digestion of complex food substances into simpler ones with the alimentary canal and the glands associated with it.

    Answer to Problem 1VCQ

    Incorrect answer:

    The incorrect answer is option (b) Food enters the large intestine before the small intestine.

    Explanation of Solution

    Explanation/justification for the incorrect answer:

    Option (b)Food enters the large intestine before the small intestine. Food enters the small intestine where the complete digestion of food occurs, it is assimilated and then the undigested food reaches the large intestine for the reabsorption of excess water from it and elimination of the waste material through the anus. So, the incorrect answer is option (b).

    Explanation for the correct answer:

    Option (a) chyme is a mixture of food and digestive juices that are produced in the stomach. In the stomach, the digestion of the food is associated with the secretion of the gastric juice containing the pepsin and HCl. The partially digested food and the gastric juice is called the chyme. So, this is a correct option.

    Option (c) in the small intestine, chyme mixes with bile, which emulsifies fats. The bile produced by the liver mixes with the chyme leading to the emulsification of the fats. So, this is a correct option.

    Option (d) the stomach is separated from the small intestine by the pyloric sphincter. Pyloric sphincter is involved in the regulation of the chyme movement from the stomach to the small intestine. So, this is a correct option.

    Conclusion

    Thus, the pathway of digestion begins in the mouth, followed by the esophagus, stomach, small intestine, large intestine, and anus. Hence, the incorrect answer is option (b) food enters the large intestine before the small intestine.

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    Chapter 34 Solutions

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